| 摘要 |
<p>Disclosed is a fully aromatic polyester which is particularly suitably used for multilayer films, multilayer sheets, multilayer blow molded articles and the like, since it is excellent in dimensional stability and heat resistance while having low volume expansion rate. Specifically disclosed is a fully aromatic polyester exhibiting optical anisotropy when melted, which contains structural units introduced from 4-hydroxybenzoic acid, 2,6-naphthalene dicarboxylic acid and hydroquinone at a specific ratio.</p> |
